<!doctype html>
<html lang="en">
  <head>
    <script type="importmap">
      {
        "imports": {
          "some-pkg": "url-of-pkg"
        }
      }
    </script>
    <link rel="modulepreload" href="url-of-pkg" />
    <script type="module" src="/main.js"></script>
  </head>
</html>
